package com.zhang.service;

import com.github.pagehelper.PageInfo;
import com.zhang.entity.Product;

import java.util.List;

public interface ProductService {
    List<Product> selectCon(String orderby,int rownum);
    Product selectById(int id);
    PageInfo<Product> selectBooksByPage(int fcid,int scid, int pageNum, int pageSize);
}
